28131978

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{929}}^1$

素因数の和:1051

約数の個数: 48

約数和(自身を含む): 66156480

約数和(自身を除く): 38024502

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 103, 147, 206, 294, 309, 618, 721, 929, 1442, 1858, 2163, 2787, 4326, 5047, 5574, 6503, 10094, 13006, 15141, 19509, 30282, 39018, 45521, 91042, 95687, 136563, 191374, 273126, 287061, 574122, 669809, 1339618, 2009427, 4018854, 4688663, 9377326, 14065989, 28131978]

約数ペア:

[(1, 28131978), (2, 14065989), (3, 9377326), (6, 4688663), (7, 4018854), (14, 2009427), (21, 1339618), (42, 669809), (49, 574122), (98, 287061), (103, 273126), (147, 191374), (206, 136563), (294, 95687), (309, 91042), (618, 45521), (721, 39018), (929, 30282), (1442, 19509), (1858, 15141), (2163, 13006), (2787, 10094), (4326, 6503), (5047, 5574)]